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Zhuang Liu, Feng Luo, Xiao-Jie Ju, Rui Xie, Tao Luo, Yi-Meng Sun and Liang-Yin Chu Positively K+-Responsive Membranes with Functional Gates Driven by Host–Guest Molecular Recognition Advanced Functional Materials 22

Article first published online: 3 JUL 2012 | DOI: 10.1002/adfm.201201251

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A unique positively K+-responsive membrane is developed to spontaneously “open” the gates in response to the presence of K+ ions in the environment. The “opening” of the membrane gates is driven by a cooperative interaction of crown ether-based host-guest complexation and poly(N-isopropylacrylamide)-based phase transition and exhibits a satisfactorily rapid, reversible, and reproducible property. The proposed membrane is highly attractive for controlled release, chemical/biomedical separations, tissue engineering, and sensors.

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